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hi,
got the engine out so checking crank and shells, crank is perfect, lower mains look like typical wear patterns, upper 2 & 4 good but 1,3,5 have the pattern as per picture. these are concentric ring patterns but they are not actually on the same axis as the crank.
sorry about the poor picture quality.
BTW the big ends were replaced recently so thats why they look clean
got the engine out so checking crank and shells, crank is perfect, lower mains look like typical wear patterns, upper 2 & 4 good but 1,3,5 have the pattern as per picture. these are concentric ring patterns but they are not actually on the same axis as the crank.
sorry about the poor picture quality.
BTW the big ends were replaced recently so thats why they look clean
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